Question

you and some friends are going to a museum. Each ticket costs $4.50.

a. if n is the number of tickets purchased, write an expression that gives the total cost of buying n tickets

Answer 1

word problem help

Answer 2

are they asking you to create your own equation?

Answer 3

yeah for A.

Answer 4

i got f(n)=4.5n

Answer 5

yea, your right, lol. ^.^

Answer 6

can you help me with this one?

Answer 7

4.5n

Answer 8

b) Suppose the total cost for n tickets is $36. What is the total cost if one more ticket is
purchased?

Answer 9

ok, now just plug in 36 for f(x)

Answer 10

36+4.50

Answer 11

no

Answer 12

36 = 4.5n

Answer 13

ok thanks

Answer 14

thanks for being helpful. mind if you help me with other ones? @ccswims

Answer 15

sure!

Answer 16

is 20-2*3^2

Answer 17

does it equal 2?

Answer 18

yes :)

Answer 19

can you show me step by step how to do it

Answer 20

ok, use PEMDAS, or order of operations.

Parenthesis
Exponents
Multiply
Divide
Add
Subtract


that is the order you go through things if you have a problem you just showed me

Answer 21

since we have no parenthesis, but we do have exponents, we would simplify the exponent first

Answer 22

ok

Answer 23

that would leave us with 20 - 2*9 now

Answer 24

then we have multiplication, so we do 2*9 next

Answer 25

and then subtract 20 - 18 last

Answer 26

ok thx

Answer 27

5*2^2 / 2+8 = 18 right?

Answer 28

yes

Answer 29

if s=4 and t=8 what is (st)^2 / (st^2)

Answer 30

@ccswims

Answer 31

ok, so according to PEMDAS parenthesis always comes first

Answer 32

so with that information, what can you do by yourself?

Answer 33

how is the equation set up?

Answer 34

(4*2)^2 / (4*2^2)

Answer 35

WAIT

Answer 36

(4*8)^2 / (4*8^2)

Answer 37

for some reason i put 2 instead of 8 in the first expression i gave you

Answer 38

oh

Answer 39

so work on (4*8)^2 / (4*8^2) and then tell me your answer when you get it

Answer 40

1?

Answer 41

@ccswims

Answer 42

not quite.

when you multiply 4*8 you get 32

32^2 / (4*8^2)

now, the (4*8^2) part can get tricky because i used to think you need to multiply 4*8 first then use the exponent. but what that parenthesis tells us is that its actually 4 * 8^2 and the 8 is the only one with the exponent.

so its actually 32^2/256

Answer 43

then its 1024/256 = 4

Answer 44

so the answer is 4

Answer 45

can you help me with a few more plz

Answer 46

yea sure

Answer 47

do you get the problem tho?

Answer 48

like, do you understand how i got 4?

Answer 49

yeah i saw my mistake

Answer 50

ok, as long as you understand how to do it :)

Answer 51

ok so if s=4 and t=8 what is 2s^2-t^3 / 16

Answer 52

just tell me the set up and ill try to get it

Answer 53

ok, you you need to plus in 4 for s and 8 for t

2*4^2 - 8^3 / 16

Answer 54

ok

Answer 55

i messed up i think @ccswims

Answer 56

i got 0

Answer 57

the answer is actually 1, can you show me your work so i can see where you went wrong?

Answer 58

ok

Answer 59

WAIT, never mind you got it right

Answer 60

i messed up and divided 32 by 32, and you need to subtract 32 and 32

Answer 61

which im guessing you did because the answer is 0 and you got 0.

Answer 62

2*4^2-8^3 / 16
2*16-512 / 16
32-512 / 16
32-32

Answer 63

yes, you got it right

Answer 64

it was my mistake. your getting the hang of equations like this really well

Answer 65

so is it 1 or 0?

Answer 66

it is 0, you were right :)

Answer 67

hay!!!!!!! lol

Answer 68

thx. can you help me with 4 more?

Answer 69

yes :)

Answer 70

dang im invisible lmfao

Answer 71

lol nah i see you

Answer 72

YAY :D

Answer 73

i can help

Answer 74

ok

Answer 75

here is the next one

Answer 76

just screenshot it

Answer 77

\[2[(8-4)^{5} \div 8]\]
\[22+1^{3}+(3^{4}-7^{2})\]
____________________________
2^3

Answer 78

i have no clue

Answer 79

i cant screenshot it its paper

Answer 80

this problem is confusing

Answer 81

are they 2 different problems?

Answer 82

is that all one problem?

Answer 83

yeah one problem

Answer 84

i can skip it if u want

Answer 85

no no

Answer 86

well the top part is 256

Answer 87

ops its only the top one! ha lol

Answer 88

yea, just remember what we talked about in the beginning, PEMDAS, use your order of operations

Answer 89

the one that starts with 2?

Answer 90

yeah

Answer 91

the answer is 256

Answer 92

and the bottom one is a fraction right?

Answer 93

i dont need to do the bottom

Answer 94

okie :P

Answer 95

so how do i do this?

Answer 96

8-4=?

Answer 97

wait, i got 704?